The outlets at work seem to be very fickle and either reduce the charging from 16a to 12a randomly or will lose power entirely (especially if someone plugs into the next plug apparently tripped the breaker, as had happened today).
Looking at Charge 118 from today, the charge started at 12:04 p.m. then was interrupted at 12:48 p.m. The UMC was not lit green and the IC was showing zeros for volts, amps and mph so the power basically stopped at this particular outlet (and all the ones nearby).
You may need to determine how to handle a scenario when someone had been charging then the power was stopped abruptly. Looking at the charge table data, it looks like 40a was being requested but it was either returning 0 or none values. The charging_state field also seems to go from Charging to NoPower so perhaps the site needs to not record the car as charging but idle? I don't know...
Originally reported on 8/22/16.
Customer support service by UserEcho